I am a long time dslr shooter with some pretty decent lenses. I have mainly shot 2.8 zooms, but I have a 50 and 85 prime that I don't use that much. But since I only have kit zooms (14-42 and 40-150) for my E-PM1, I thought I'd give a prime a go to see if it made a noticeable difference in my photo quality. So, to try and figure out what prime I'd use the most, I analyzed some of my most recent photos taken with my kit zoom. What I found is that the biggest grouping of photos was taken at 42mm. The next, slightly smaller grouping was around 25mm. Most of the rest were between those two, with only a few in the 14-20 focal lengths. So, going just by the numbers, it seems the O45 would be the best bet for me, but I would think the 25 would be the more versatile and more used lens. In my experience with my dslr, I have a 50 prime and shooting it on my 1.6 crop camera that comes out to an 80 effective and I usually found that too long indoors. So, I hardly ever used the 50 inside and when outdoors I preferred the 85 which is an effective 135 or so. All of that to say, I am very hesitant to drop the money on the 45 for fear I won't use it. My finances are tight right now and I can't afford to buy a lens I don't end up using. But it is cheaper than the Pany 25 and seems to be an excellent lens. Finances dictate waiting a bit before pulling the trigger unless I find a good deal on a used one, but what do you folks think? Should I go with the analysis and get the 45 or go with my gut and get the 25?